Pulley attachment for electric lamps



(No Model.)

T. H. BRADY. PULLEY ATTACHMENT FOR ELECTRIC LAMPS.

No. 437,883. Patented Oct. 7, 1890.

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UNITED STATES PATENT OFFICE.

THOMAS H. BRADY, OF NPHV BRITAIN, CONNECTICUT.

PULLEY ATTACHMENT FOR ELE CTRIC LAMPS.

SPECIFICATION forming part of Letters Patent No. 437,883, dated October 7, 1890.

Application filed March 19 1890- To all whom, it may concern:

Be it known that I, THOMAS II. BRADY, a citizen of the United States, residing at New Britain, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Pulley Attachments for Electric Lamps, of which the following is a specification.

My invention relates to improvements in storm-covered pulleys for electric lamps and the objects of my improvement are to more conveniently and securely attach the pulley and its cover, and to do so without cutting the wire.

In the accompanying drawings, Figure 1 is a front elevation of my pulley-cover and its attachment, together with a portion of span wire, cable, or rope to which it is attached, and a portion of the cable for raising and lowering the electric lamp. Fig. 2 is a like View of a portion of said cover and attachment, the cap-piece being removed; and Fig. 3 is a vertical section on the line 00 0c of Fig. 1.

The hood or cover A may be of any ordinary construction and provided with any ordinary pulley, over which runs the cable B for raising and lowering an electric lamp. It is made fiat and thin, so that its two broad sides may serve as bearings for the pulley, and it is inclosed on three edges, with the exception of an opening at the upper portion of one of the side edges for the passage of the cable that runs over the pulley. The lower or under edge is open. I provide the top edge of the pulley-cover with a clamping socket-plate 4:, the interior of which is roughened or ribbed transversely to its length for obtaining a better hold on the span wire or cable. This clamping socket-plate is preferably niade integral with the pulley-cover, its length extends in a direction parallel to the broad sides of the pulley-cover, and the whole may be made of cast-iron. The clamping socket-plate is also provided with ears or lugs 5 5, in which to form holes for the bolts or screws 6. A clamping cap-piece 7, having corresponding sockets and lugs 5 5, is placed upon the clamping-socket 4, as shown, and

secured by the bolts 6 6. These may be taken Serial No. 344,506. (No model.)

apart or loosened and placed upon the spanwire C, with said wire extending through the clamping-socket, when the wire is clamped firmly therein, so as to secure the pulley in the desired position.

I have shown only two bolts or screws for the clamping-socket, both of which are on one side of the span-wire C; but it is evident that one or more holes and bolts or screws may be arranged on the other side of said wire, if desired.

The span wire, cable, or rope C may be supported inany ordinary manner-as, for instance, by poles or other supportson each side of the roadway.

By my improvement I produce a storm-covered pulley that maybe securely, readily, and conveniently attached to any desired point of the span-wire without cutting the wire or fastening two separate ends to the pulleycover.

I am aware that a prior patentshows alantern for bicycles having a socket, clampingplate, and binding-screws at the top for securing said lantern to the pedal; also that another patent shows a dome-connection for electric-arc lamps having like clamping devices at the top of the dome. All of said prior part is hereby disclaimed.

I claim as my invention 1. The herein-described pulley attachment for electric lights, the same consisting of the pulley-cover and pulley mounted therein, said cover being open at its under edge and having the top and both side edges closed and covered, except a cablebpening at the upper corner of one side edge, and also having at the top edge diametrically opposite the under open edge the clamping socket-plate, and the clamping cap-piece extending in a direction substantially parallel to said open under edge, substantially as described, and for the purpose specified.

2. The herein-described pulley attachment for electric lights, the same consisting of the pulley-cover and pulley mounted therein, said cover being open at its under edge and having the top and both side edges closed and covered, except a cable-opening at the upper corner of one side edge, and also having at or ribbed transversely to the length of said the top edge diametrically opposite the under groove, substantially as described, and for the open edge the clamping socket-plate, and the purpose specified.

clamping cap-piece extending in a direction THOMAS H. BRADY. substantially parallel to said open under edge, Witnesses: said socket-plate and cap-piece being grooved JAMES SHEPARD,

longitudinally, as described, and roughened JOHN EDWARDS, Jr. 

